Heater for brooder houses



Sept. 1, 1936. L. E. DOAN HEATER. FOR BROODER HOUSES Filed July 26, 1954' it: w\ h fimauqw n w o Q \k :u A 1.: m

Patented Sept. 1, 1936 pairs stars rrti'r HEATER FOR BROODER HOUSES Leslie E. Dean, Hale, Mo., assignor of forty per cent to Ervin C. Winfrey, Hale, Mo.

Application July 26,1934, Serial No. 737,125

1 Claim. (Cl. 236-6) This invention relates to improvements in tate the introduction of fuel into the stove and heaters for brooder houses and pertains particuthe removal of ashes therefrom. The fixed porlarly to an improved type" of thermostatically tion 4 of the stove top has an opening with which controlled heater designed for the burning of is connected a stove pipe 8 of the usual design,

5 wood. which extends upwardly through the roof I of the 6 In brooder house heaters of the types at preshousing in the manner illustrated. ent commonly supplied, provision is made for the The bottom of the stove is indicated by the use of coal or liquid fuel principally and in all numeral 9 and is raised from the bottom of the such heaters, where solid fuel is to be used, grates stove body l to form a lower chamber which is 0 are employed for the support of such fuel. filled with sand, ashes, or some other suitable 0 In the present invention, the primary object material it, which will prevent an excessive is to provide a brooder heater which is designed o t Of h a om e h the underlying primarily for burning wood, in which no grate floor. is employed for the support of the fuel and the At a point above the bottom 9, preferably apdraft is supplied over the top of the fuel instead proximately 8 in. a p i H i me in e 15 of from the bottom of the same as in other types wall of the stove and over this opening is secured of burners, one end of a pipe l2, which extends horizontally A further object of the invention is to provide from the wall of the stove and which, although an improved means of thermostatically controlit may be made of any size and length, is preferling the top draft for the present brooder fuel ably of approximately 2 in. in diameter and 14 in. 20 burner whereby the fuel will be caused to burn long when used in association with a stove of up quickly or be checked in rapid response to approximately 30 in. in height and a diameter changes in the temperature of the atmosphere of 20 in. within the brooder house. Adjacent the outer end of the pipe l2, which Other objects and advantages of the invention constitutes the air inlet for the stove, a bracket 25 will become apparent as the description of the i3 is fixed which extends downwardly and proceeds and it is to be understood that the wardly to terminate in a p e 0011111101! 130 the invention is not to be limited by the showing of free end of the pipe. Oscillatably attached to the drawing forming part of the present applithe free end of this bracket i3 is a draft door I4,

cation but may be changed or modified so long which is adapted to close against the end of the 30 as such changes or modifications mark no mapipe it to shut off the flow of air into the stove. terial departure from the salient features of the This draft door, which is in the form of a flat invention as expressed in the appended claim. p ate, has an arm extension 5, to Which is con- In the drawing: nected one end of a flexible wire or a chain I6,

Figure 1 is a vertical section through a porwhich extends upwardly and is attached at its 5 tion of a brooder house showing the structure other end to one end of the rod or lever l1, which embodying the present invention therein and is suspended intermediate its ends from the ceilpartially in section. ing of the brooder house by the bracket l8.

Figure 2 is a view in plan of the stove with the To the other end of the lever I1 is attached hover. one end of a flexible wire or chain l9, and sup- 40 Referring to the drawing wherein like numerals ported in any suitable manner below the lower of reference designate corresponding parts end of this flexible connection is a relatively long throughout the views, the numeral l indicates horizontally disposed shelf 26. From the under the roof and the numeral 2 the side walls of a side of the shelf 28 adjacent the end nearest conventionally illustrated brooder house in which the stove is secured the depending bracket 2| to 45 the present invention is shown. The invention which is pivotally attached one end of a relativecomprises a sheet metal stove having a body 3 1y long lever arm 22, the other end of which has preferably of cylindrical design and having a the flexible connection l9 connected therewith. top divided transversely to form the rear fixed Upon the under side of the shelf 20 adjacent the portion i, one edge of which extends transversely bracket 2! is suspended a thermostat wafer 23 5 of the cylindrical body and which has fixed thereagainst the under side of which the lever arm 22 to hinges 5, to which is attached the edge of the is adapted to contact. other part of the top, which is indicated by the While the structure thus far described will satnumeral 6 and which is designed to be raised isfactorily control the temperature of a medium and lowered by means of the handle '5 to facilisize brooder house through cold weather, when 55 the weather is severely cold, the stove 3 may be partially surrounded by a canopy 24 of some suitable non-inflanmiable material, so that a portion of the heat may be concentrated thereunder for the protection of young chickens during the colder periods of the winter. The canopy 24 may have a portion open or cut away, as illustrated, so that the draft pipe l2 may be reached if necessary, and the placing of fuel in the stove and the removal of ashes therefrom may be accomplished conveniently.

From the foregoing description, it will be readily apparent that the stove structure described and illustrated may be charged with a substantial amount of fuel of the nature of wood and because of the provision for supplying air to the top of the charge, it will not burn out rapidly when the draft door is open and combustion will take place only very slowly when the draft door is closed It will thus be seen that such rapidly burning fuel as wood or waste paper may be made to last a much longer period of time than would be the case if it were placed on a grate and supplied with air from beneath.

When the temperature Within the brooder house has reached the desired height, the expansion of the thermostatic wafer 23 will cause a pressure to be exerted downwardly on the lever 22 so that the free end of the lever will be depressed to oscillate the lever l1 and pull the draft door up to closed position. Upon the contraction of the wafer as the temperature cools, the draft door will fall open of its own weight and at the same time will reversely oscillate the lever 22, thus maintaining it always in contact with the wafer.

What is claimed is:-

A draft control for a, brooder or other type of stove having a bottom draft opening controlled by a gravity-controlled door, comprising a shelf secured adjacent the stove and having an aperture therethrough, a lever disposed horizontally beneath said shelf and pivotally attached at one end to the under side thereof, the other end of the lever being disposed beneath said opening, a thermostat wafer secured to the underside of the shelf between the same and the lever and engaging the latter, a second lever disposed at an elevation above said shelf, a supporting bracket for said second lever and pivotally connected therewith substantially midway of the ends thereof, a cord connecting one end of the second lever through said shelf aperture with the free end of the first lever, and a cord connecting the other end of the second lever with said door, said door by its tendency to open through the effect of gravity, maintaining said cords taut at all times.

LESLIE E. DOAN. 

